A long time ago, that bike was my first HD. And New Jersey had us putting inspection stickers on the tubes. I hated it, especially since the "inspectors" were picky about placing decals over one another. It was tough getting old ones off without using a razor blade
In this picture I had started making changes to the bike, polished the caliper and had it chromed along with chroming just about everything else.
Left the sticker off until I got tired of the tickets.
So the next step was to pull the forks, have the reflector bosses ground off the the sliders (glad they don't make them like that anymore) and then getting them chromed.
No way I was going to clutter it up with that big sticker. So, I just made a bracket that bolted up behind the tube at caliper level, never got another ticket.